Problem updating OJS 2.4.5.0 to 3.1.2

Software Support
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2

Hi @iurycastro,

Can you check in your OJS 2.4.5 database to see whether you have two users with the same ORCID. You can do this by running the following database query…

 SELECT setting_value FROM user_settings WHERE setting_name='orcid' GROUP BY user_id HAVING count(*) > 1;

Regards,
Alec Smecher
Public Knowledge Project Team